Home / 212,786.46-319,190.58-55,016.28

Finding the Fourth Proportional to 212,786.46, 319,190.58 and 55,016.28

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Solution

The fourth proportional to 212,786.46, 319,190.58 and 55,016.28 is: 82,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,786.46 : 319,190.58 = 55,016.28 : x
  2. Step 2: Convert to fraction form
    212,786.46/319,190.58 = 55,016.28/x
  3. Step 3: Cross multiply
    212,786.46x = 319,190.58 × 55,016.28
  4. Step 4: Simplify right side
    212,786.46x = 17,560,678,322.64
  5. Step 5: Solve for x
    x = 17,560,678,322.64/212,786.46
  6. Step 6: Final answer
    x = 82,527.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.